FR523989A - Method and apparatus for manufacturing piston rings - Google Patents

Method and apparatus for manufacturing piston rings

Info

Publication number
FR523989A
FR523989A FR523989A FR523989DA FR523989A FR 523989 A FR523989 A FR 523989A FR 523989 A FR523989 A FR 523989A FR 523989D A FR523989D A FR 523989DA FR 523989 A FR523989 A FR 523989A
Authority
FR
France
Prior art keywords
piston rings
manufacturing piston
manufacturing
rings
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR523989A
Other languages
French (fr)
Inventor
Marcel Billon
Francois Dufay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR523989A publication Critical patent/FR523989A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0411—Drills for trepanning with stepped tubular cutting bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR523989A 1920-09-10 1920-09-10 Method and apparatus for manufacturing piston rings Expired FR523989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR523989T 1920-09-10

Publications (1)

Publication Number Publication Date
FR523989A true FR523989A (en) 1921-08-27

Family

ID=8918994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR523989A Expired FR523989A (en) 1920-09-10 1920-09-10 Method and apparatus for manufacturing piston rings

Country Status (1)

Country Link
FR (1) FR523989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193181A2 (en) * 1985-03-01 1986-09-03 Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH Highly stable blade wheels for turbomolecular pumps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193181A2 (en) * 1985-03-01 1986-09-03 Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH Highly stable blade wheels for turbomolecular pumps
FR2578287A1 (en) * 1985-03-01 1986-09-05 Pfeiffer Vakuumtechnik LARGE STABILITY DISKS FOR TURBOMOLECULAR PUMPS AND PROCESS FOR PRODUCING SUCH DISCS
EP0193181A3 (en) * 1985-03-01 1988-07-27 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh Highly stable blade wheels for turbomolecular pumps

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